package com.will.design.demo.behavior.service.impl;

import java.util.Observable;
import java.util.Observer;

/**
 * @author will
 */
public class Observer1 implements Observer {

    public Observer1(Observable observable) {
        observable.addObserver(this);
    }

    /**
     * This method is called whenever the observed object is changed. An
     * application calls an <tt>Observable</tt> object's
     * <code>notifyObservers</code> method to have all the object's
     * observers notified of the change.
     *
     * @param o   the observable object.
     * @param arg an argument passed to the <code>notifyObservers</code>
     */
    @Override
    public void update(Observable o, Object arg) {
        System.out.println("Observer1 get " + o.toString());
    }
}
